/*
 * Copyright 2014 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.kie.workbench.common.services.backend.validation;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

import org.guvnor.common.services.project.model.Package;
import org.kie.workbench.common.services.shared.project.KieModuleService;
import org.uberfire.backend.vfs.Path;
import org.uberfire.ext.editor.commons.backend.validation.FileNameValidator;
import org.uberfire.ext.editor.commons.backend.validation.ValidationUtils;

/**
 * Java file name validator.
 */
@ApplicationScoped
public class JavaFileNameValidator implements FileNameValidator {

    @Inject
    KieModuleService moduleService;

    @Override
    public int getPriority() {
        return 1;
    }

    @Override
    public boolean accept(String fileName) {
        return fileName != null && fileName.endsWith(".java");
    }

    @Override
    public boolean accept(Path path) {
        if (!accept(path.getFileName())) {
            return false;
        }
        Package currentPackage = moduleService.resolvePackage(path);
        return currentPackage != null && !"".equals(currentPackage.getPackageName());
    }

    @Override
    public boolean isValid(String value) {
        return value.endsWith(".java") && ValidationUtils.isJavaIdentifier(value.substring(0,
                                                                                           value.indexOf(".java"))) && ValidationUtils.isFileName(value);
    }
}
